Lennox ComfortSense L7742U Programming Manual page 15

H/C
Stages
Locked =
NO
3rd stage
ON
4th stage
ON
Stg4 Differential
H/C
Stages
Locked =
YES
3rd stage
ON
4th stage
ON
Stg4 Differential
SET-
POINTS: SP −3.5 SP −3.0
Figure 10. Heating − Heat Pump w/electric − 4 stage (2 compressor / 2 backup)
H/C
Stages
Locked =
NO or 2nd stage
YES
SET-
SP −3.0 SP −2.5
POINTS:
Figure 11. Heating − dual fuel − 2 stage (1 compressor / 1 backup)
H/C
Stages
Locked =
NO
3rd stage
ON
Stg3 Differential
H/C
Stages
Locked =
YES
3rd stage
ON
SET-
SP −3.5 SP −3.0
POINTS:
Figure 12. Heating − dual fuel − 3 stage (1 compressor / 2 backup)
H/C
Stages
Locked =
NO
3rd stage
ON
H/C
Stages
Locked =
YES
3rd stage
ON
SET-
SP −3.5 SP −3.0
POINTS:
Figure 13. Heating − dual fuel − 3 stage (2 compressor / 1 backup)
2nd stage
ON
Stg2 Differential
Stg3 Differential
4th stage
OFF
2nd stage
ON
Stg2 Differential
Stg3 Differential
SP −2.5 SP −2.0 SP −1.5
ON
Stg2 Differential
SP −2.0 SP −1.5 SP −1.0
2nd stage
ON
Stg2 Differential
2nd stage
ON
Stg2 Differential
Stg3 Diff.
SP −2.5 SP −2.0 SP −1.5
2nd stage
ON
Stg2 Differential
Stg3 Differential
2nd stage
ON
Stg2 Differential
Stg3 Differential
SP −2.5 SP −2.0 SP −1.5
Page 15
1st stage
ON
Stg1 Differential
2nd stage
OFF
3rd stage
OFF
1st stage
ON
Stg1 Differential
SP −1.0 SP −0.5 SP
1st stage
ON
Stg1 Differential
SP
SP −0.5 SP +0.5
1st stage
ON
Stg1 Differential
3rd stage
OFF
1st stage
ON
Stg1 Differential
SP −1.0 SP −0.5
SP
1st stage
ON
Stg1 Differential
2nd stage
OFF
1st stage
ON
Stg1 Differential
SP
SP −1.0 SP −0.5
ComfortSenset Model L7742U Touch Screen
1st stage
OFF
1st stage
OFF
2nd stage
OFF
3rd stage
OFF
4th stage
OFF
SP +0.5
1st stage
OFF
2nd stage
OFF
1st stage
OFF
2nd stage
OFF
1st stage
OFF
2nd stage
OFF
3rd stage
OFF
SP +0.5
1st stage
OFF
3rd stage
OFF
1st stage
OFF
2nd stage
OFF
3rd stage
OFF
SP +0.5
7−Day Programmable Thermostat